Ar.308 ballistic advantage problems

[MoAli31]

Hi I recently picked up a 18 inch ballistic advantage Hanson barrel and I have had several issues with it feeding. After I installed the barrel with the gas block it came with, I would encounter two scenarios. The first being the gun would eject the round and lock the bolt back completely, not chambering a new round. The second problem I have is that the gun would eject the casing and rack a new round but it would jam. Upon examination, the jammed round would be slanted with the bullet pointed up toward the chamber ramp of the barrel and the bolt smashed into the side of the bullet, making a indent. I believe my gun is over gassed and is causing these problems. The casings eject to my 4 o'clock position. Some of the guys I asked said it might be a magazine issue because it won't feed right. But I use a 10 round P mag.

If my explanations are confusing, please reply so I can reiterate.

Thanks

 

[BarrettBoy]

Having the bolt lock back like that combined with strange feeding makes me think it might be an issue with either the lower or the bcg.

Just to make sure, do the feed ramp design of your upper receiver match your barrel?
Are all your parts of the same 308 AR pattern?

 

[MoAli31]

Well I have had a gunsmith assemble my gun together after I had bought the barrel so everything should be connecting fine with no problems. And yes every part I have on my Dpms is of Dpms ar 308 pattern.

 

[winniedonkey]

Is the same ammo causing both issues? Cheapest fix check is another mag. Couldnt tell if you tried multiple.

Sent from my HTC6535LVW using Tapatalk

 

[MoAli31]

Yes the same ammo is causing the issues, have yet to try different ammo and a different mag. Will be testing this weekend and will update how it goes.

 

[Mute]

What kind of buffer and buffer spring are you using?

 

[MoAli31]

[No message]

 

[Gasgun]

I'd say overgassed.

 

[BarrettBoy]

Is that the exact position you find it locked open in?
Or is that the failure to feed position?

 

[MoAli31]

That's how it is when I locked it open.

 

[MoAli31]

This is what happens when I take the round out of the gun.

 

[BarrettBoy]

Assuming you've tried multiple magazines, personally i think the problem is either with the bolt carrier group or the feedramps/lower receiver.